Presence of periodicity in meteorite falls

Details Presence of periodicity in meteorite falls Presence of periodicity in meteorite falls

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983polre..30..362y&link_type=abstract

(National Institute of Polar Research, Symposium on Antarctic Meteorites, 8th, Tokyo, Japan, Feb. 17-19, 1983) National Institut

Computer Science

3

Maximum Entropy Method, Meteorites, Periodic Variations, Spectrum Analysis, Autocorrelation, Time Series Analysis

Scientific paper

A maximum entropy method (MEM) spectral analysis is made of the number of historically recorded meteorite falls in China from AD 619 to 1943 and of the number of witnessed falls in the world during the period from 1800 to 1974. The presence of a 60-year period as suggested by previous workers, Chang and Yu (1981), is confirmed as a common feature of meteorite fall rate. In this paper the period is determined to be between 60 and 63 years. A periodicity of 240 years, also previously noted, is unstable in spectral analysis, suggesting that this periodicity may not exist. The presence of two more periodic components: approximately 10.6 and 17.7 years in meteorite flux is indicated from the power spectrum.

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